交錯式撓性平移接頭之最佳化設計

Abstract

本文內容為研究三維構造撓性平移接頭的設計。首先從現有的論文及期刊等文獻瞭解現今撓性平移接頭的特性，並針對割痕式及板片式接頭作優缺點分析，定出接頭的設計方向，接著藉由文獻中的公式及接頭的各項性能參數為參考，設計出新式接頭的雛型。為了瞭解接頭的幾何尺寸對於精度的影響，使用直交設計法分析各尺寸的顯著程度。再以ANSYS的最佳化模組進行結構最佳化，並以實驗量測出接頭的各性能指數。最後根據模擬與實驗的結果驗證直交設計法及ANSYS最佳化的正確性，並驗證新式接頭的各項性能指數確實都達到要求的水準。

This thesis studies the design of a three-dimension compliant translational joint (CT joint). First, the literature search is performed to understand the characteristic of various CT joint and the pros and cons between notch-type and leaf-type joint are studied, in order to define the design guidelines of joint. Second, principles of design are determined according to the equation of the literature and the benchmarking index of joint. In order to realize the precision of effect of the dimension, this study uses the orthogonal design method to analyze significant level of the dimension. To improve the precision of the motion of CT joint, the structural optimization is performed via CAE’s optimization tool. A prototype is built and the experiments is conducted to obtain the benchmarking index. Finally, comparison of the simulation and experimental result, the design of the CT joint is verified.